package Demo2;

public class KeyBoard implements IUsb{

    @Override
    public void openDevice() {
        System.out.println("usb接口已接入键盘........");
    }

    @Override
    public void closeDevice() {
        System.out.println("键盘以退出接入usb接口........");
    }

    public void useKeyBoard(){
        System.out.println("使用键盘........");
    }

}
